Solutions by everydaycalculation.com
724 - 1224 is -524.
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Related: 14/24-12/24 7/48-12/24 7/24-12/48 21/24-12/24 7/24-36/24 7/72-12/24 7/24-12/72 35/24-12/24 7/24-60/24 49/24-12/24 7/24-84/24
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